FILE - This Monday, Oct. 31, 2011 file photo shows an auction sign at the bankrupt Solyndra headquarters in Fremont, Calif. before an auction. The bankrupt solar company Solyndra has become a rallying point for conservatives who hold up the California firm as a symbol of the Obama administration's failed economic policies. Now hundreds of glass rods custom made for Solyndra solar panels have found new life as an art installation at the University of California, Berkeley. But like all things associated with Solyndra, the "SOL Grotto" exhibit has become a political target this election season. (AP Photo/Paul Sakuma, File)